Eraser



FIG. 1 is a perspective view of an eraser showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for purposes of showing portions of the eraser that form no part of the claimed design. 

CLAIM The ornamental design for an eraser, as shown and described. 